Convert InnoDB Plugin tests to include have_innodb_plugin.inc.

This also instructs mtr to transparently load the plugin.

mysql-test/suite/innodb_plugin/t/innodb-use-sys-malloc.test

---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 #display current value of innodb_use_sys_malloc
 SELECT @@GLOBAL.innodb_use_sys_malloc;
@@ -22,7 +22,7 @@ create table t1(a int not null) engine=innodb DEFAULT CHARSET=latin1;
 insert into t1 values (1),(2),(3),(4),(5),(6),(7);
 select * from t1;
 drop table t1;
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 #display current value of innodb_use_sys_malloc
 SELECT @@GLOBAL.innodb_use_sys_malloc;

mysql-test/suite/innodb_plugin/t/innodb_bug44369.test

@@ -3,7 +3,7 @@
 # some innodb internal reserved key words,
 # both case sensitively and insensitely.
 
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 # This create table operation should fail.
 --error ER_WRONG_COLUMN_NAME

mysql-test/suite/innodb_plugin/t/innodb_bug46000.test

@@ -3,7 +3,7 @@
 # "GEN_CLUST_INDEX", which is the reserved
 # name for innodb default primary index.
 
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 # This 'create table' operation should fail because of
 # using the reserve name as its index name.

mysql-test/suite/innodb_plugin/t/innodb_bug46676.test

@@ -2,7 +2,7 @@
 # It is reproducible with InnoDB plugin 1.0.4 + MySQL 5.1.37.
 # But no longer reproducible after MySQL 5.1.38 (with plugin 1.0.5).
 
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 SET foreign_key_checks=0;
 CREATE TABLE t1 (id int, foreign key (id) references t2(id)) ENGINE=INNODB;

mysql-test/suite/innodb_plugin/t/innodb_bug47167.test

@@ -3,7 +3,7 @@
 # "innodb_file_format_check" with a
 # user-Defined Variable.
 
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 # Save the value (Antelope) in 'innodb_file_format_check' to
 # 'old_innodb_file_format_check'

mysql-test/suite/innodb_plugin/t/innodb_bug47621.test

@@ -2,7 +2,7 @@
 # not result in column definition inconsistency between MySQL and
 # InnoDB
 
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 CREATE TABLE bug47621 (salesperson INT) ENGINE=InnoDB;
 

mysql-test/suite/innodb_plugin/t/innodb_bug47622.test

@@ -4,7 +4,7 @@
 # We resolve the problem by sync the index sequence
 # up when opening the table.
 
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 connect (a,localhost,root,,);
 connect (b,localhost,root,,);

mysql-test/suite/innodb_plugin/t/innodb_bug47777.test

@@ -4,7 +4,7 @@
 # should follow the process for the BLOB
 # datatype as well.
 
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 create table bug47777(c2 linestring not null, primary key (c2(1))) engine=innodb;
 

mysql-test/suite/innodb_plugin/t/innodb_bug51378.test

@@ -9,7 +9,7 @@
 # will be created as primary index
 # Following queries test various scenario, no mismatch
 # error message should be printed.
---source include/have_innodb.inc
+-- source include/have_innodb_plugin.inc
 
 # Create a table contains a BLOB column
 create table bug51378 (